Armor-piercing projectile.



A. J. SQDEN. ARMOR PIERGING PROJ EEEE LE;

A IIIIIIIIIIIIIII JA N 7 1 9 1 a 1,059,403. Pa entedApr.22,191 3.

EEEEEEEEEEEEE 1.

A. J. SODEN.

ARMOR PIERGING PROJEOTILE.

APPLIOATION FILED JAN. 7, 1913.

1,059,403 Patented Apr. 22, 1913.

2 SHEETSSHEET 2.

} "UNITED-STATES P TE T orator; i

ALFRED J.- SODEN, or NEWARK, NEW -J'ZElBSEY, ASSIGNOR r c UCIB/LEKS'TEEL COMPANY or AMERICA, or PITTSBURGH, PENNSYLVANIA.

An vion-rrnnci e' rRoJEcTI n.

1,059,403; specificatibnpueflersPatent. Patented Apr.22,1913.

-- Application filed I'Ianua-ry7,1913. s ria1No. '74o,74i.;, w I

To cill uaho izf may concern: 4 I tip portion 6, extending through substaii- '55 e It O n that I,-ALFR ED J. SO N, a tially one-fourth the total length of the citi Zen of the United States, resid g a point,. and formed with the:longitudinal Newark, in the county of Essexand State curvature ofa'standard ogiv'al point having 0f e J y, have invented c t a uniforin'curvature radius of two calibers. and.v useful Improvements in. Armor-'Pierc- The base and tip portions of the point are ing Projectiles, Of whichthe fOllOWlng is a, connected by anntermediate portion -7, SPGClfiQZLtlOIL g I formed with: a variable curvature radius, My invention relates to improvements in all axial contour elements of which comprise armor-piercing projectiles and caps there; variable curves, and which is blnnter than for, and it consists. in the constructions, said respective portions at points adjacent scribed and claimed. 4

combinations andarrangements herein de; thereto; said intermediate portion extending- F through substantially one-fourth the total An object of my invention is-to provide 'length of the point. j

an improved armor-piercing projectile of From the above description, it-will be nil-. greatly increased strength adapted to bite derstoodythat my invention provides anim- 1 energy required for penetration.

into and penetrate an armor plate through provedprojectile, in which all axial eleout-a maximum range in the angle of inci- .ments 10f the point contour comprise a tip dence. arc of approximately two-caliber radius, a A further object .of my invention is to base are of greater radius, and a variable provide'an improved armor-piercing projectileand cap, constructed tominimizethe re construction provides a projectile having an sistance toits flight and the velocity and integral point substantially one and threefOLllthS calibers long, comprising a base poi- In tlie'accompan-ying drawings, forming tion extending through substantially onecurve connecting said arcs. This iu'iproved 75.

a 'part'of this application and in which simi-v half the'tot-al length of the point, and formed '80' lar reference symbols indicate correspo-ndsharper, or with a greater radius of longiing parts in the several views: Figure'fl is tud'inal curvature, than previous construcan axial section, illustrating one emboditions;.-a blunter tip portion extending" inent of'iny invention applied to a. 12-in'ch, through substantially one-fourth the total projectile; F ig.2. is a diagrammaticalview length of the point, and corresponding in showing the form of the axial elcmentsof taper to the standard navalogivalpoint of the contour of the projectile point, and Fig. two-caliberradius curvature; and winter- "t e axial elements.

.shown of greater length than the.sta'n( lai d from the tip, I

3 is .a diagrammaticalview, drawn to o'ne-- mediate portion --all axial. contour elements uarter scalefish'owiiig a. portion of one of of. which comprise variable curves extei ding from said base portion with a progressively 90. Referring .tothe drawings, 1 indicates the increased curvature. tangentiallytolsaiql tip cylindrical body portion of a 1: r 0jectileproportion for producing a blunting of the 'vided with my preferred point 2, which is point at. approximately .875 caliber length ogivalpoint having a uniform curvature In this construct-ion, the cliambei-"Ifoithe .In-m'y improved .p'rojectile'ythe preferre in t e previous armor-piercing radius f tWQCidiberSw explosive charge is extended within the long ;.The projectile is provided wiith'a band 3, and sharp base portion of the point: said and a base plug 4 constructed to screw base portion providing wallsof maximum tightly to place against a graphite gasket. resistance'to shearing on cones of. forty five (1 d'egrees atthe forward end of said chamber,

form of point isprovided with a base por-, This insures an enlarged chamber: .capacity,. tion 5 whichjis sharper than that employed and ethciently advances the position of the v projectiles; center of gravity ofthe projectile. The unsaid base portion being shown with a radius pro'ved contour of the'point provides'a con- 4 tially seven calibers,

of longitudinal curvature equal to substanstruction which will bite i tria angl penetrate and extending through 'armor plate ate-a reduced velocity energy or approximately one-half the total length of the projectile, and in which a'niaxi mum rcpoint. The'point is formed with a bltinter sistance will be provided throughout the 35 T tour-comprising a t caliberradius. extend caliber-len' th from the tip, a base are of tu'ting a continuation of the contour of the sharp base portion 5 of the projectile point: the cap having the same longitudinal curvature as said base portion 5. .By this conters-Patent is struction, the resistance of' the projectile during flight will beiminimized, the center of mass of the cap 'vvill be advantageously positioned relative to the pro'ect-ile tip, and

, the sharp contour of-thesoli body portion 8 of the cap insures an e flicient bite'into the armor plate throu houfia-maximum range in the angle of iiitndence, 1-

Having thus described my invention, What I claimas new secure by Let- 1. The herein; destined roved'iarmorpiercing, 'projectile' prov'id withan integral point having all axial elements ofiits contour comprislngatip arc of at least twocal lber rad 1us, a base arc of greater radius,

\ and. a variable curve having a [greater dey gree of curvature throughout than said base.

arcvand extendin'gIfro'm the latter with aprogressivelyincreased curvature to said tip V rein described improved armorpiercing'projectile provided withzm integral. pointhaving all axial.elements.of its coni are of at least twomg approximately .44

" greater ra IIUS, and; a variable curve having a greater curvaturethroughout thansaid' base are and extending from the latter with ,a progressively increased curvature to said tip arc.

a The herein described improved armorv piercing projectile provided with an integral point having all axial elements of its contour comprising a base are having approximately seven caliber radius, a tip arc of less radius, and a variable curve having a greater degree of curvature throughout than said base are and extending from the latter with a progressively increased cur vature to said tip arc:

4:. The herein described lmproved armorpiercing projectile provided with an integral point of substantially one and threefourths calibers length, comprising a base portion having a'length approximately onehalf that of the entire point, a sharper tip portion havin a length approximately onefourth that 0% tel-mediate portion, having a progressively increased curvature from said base portion to said ti "portion.

. 5. The herein described improved capped armor-piercing projectile provided with an integral point having all axial elements of its contour comprising a base arc having ap:

proximately seven .callber' ra-dlus and extending through substantially .87 5' calibers,

a'tip arc of'lessradius, and'a' variable curve the entire point, and'an in having a greater degree: of curvature throughout than said base are and extending from the latter withQa-progressivelyincreased curvature to said'tip are; and a cap comprising a solid body" portion and a hollow tip portio'n'forine smooth contour constitutinga continuation of the contour of the base portion o'f said projectile point. j

' In testimony whereof Iaifix in presence of two witnesses. V

' ALFRED J SODEII.

f' n wrv WVitnesses:

WM. CAMFIELD, i W. A; JoHNsoN.

throughout with a at I Copies of this patent may be obtained for five cents each, by addrelsing the Commissioner of m,

Washington, D. C." 

